Is this blue green algae starting? - The Planted Tank Forum
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post #1 of 4 (permalink) Old 08-21-2020, 12:52 PM Thread Starter
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Is this blue green algae starting?



This is on my Pinnatifia which is directly under the lights.


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post #2 of 4 (permalink) Old 08-21-2020, 01:01 PM
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Sure looks like it. Usually starts from an immature bio-filter coupled with too much light and not enough removal of organics.
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post #3 of 4 (permalink) Old 08-21-2020, 02:20 PM
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Yeah I'm getting a start on this algae also I relied on a pair of young Rosy Barbs as a fish cycle and it may have been a mistake as they're little pooping machines.

Ive read that running a airstone at night to oxygenate and help get the biofilter established is a good strategy if you're injecting CO2.
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post #4 of 4 (permalink) Old 08-28-2020, 02:10 AM Thread Starter
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The blue green algae was isolated. Only on that pinnatifida leaf which I cut away.

At 14 days since flooding I increased the photoperiod from 4 to 6 hours. The response is a massive outbreak of green hair algae. Everywhere on the slower growing plants, the driftwood, rock work. Itís massive and itís crazy.

I guess the reason is that 1. the tank is still to immature for an increased photo period and 2. The co2 levels were not able to match up.

I have reverted back to the 4 hour photo period and cranked up the co2 to 3 bubbles per second. Co2 switches on 3 hours prior to the lights on and closed only 1 hour prior to lights off.


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